no naso in there. a volitan will eventually get too big also. you can still keep a lion in there though. get either a dwarf fuzzy or dwarf zebra, im sure you could work out a deal with your lfs to take the volitan back for one of these. a snowflake eel will go reall good in there. you could probably put a tang in there (like a yellow or a kole) but no large tangs. hth bo